.scrollTop {
 background:url(../images/vverh2_norm.png) 0 0 no-repeat; display:block; width:32px; height:32px; position:fixed; bottom:10%; left:90%; z-index:2000;
}

.scrollTop:hover {
 background:url(../images/vverh2_act.png) 0 0 no-repeat;
}